Improvement in cultivators



L."P.THOMPS ON.,I

CULTIVATOR.

Patentefi March-.28, 1876.

1H I I [In/culmhwy W 5 MFETERS. FNOTO-LITHOGRAPME5L WASHINGTON D CFFIGE.

LESTER P. THOMPSON, OF PHELPS, NEW YORK.

IMPROVEMENT IN CULTIVATORS.

Specification forming part of Letters Patent No. 175,392, dated March28, 1876; application filed January 2t, 1876.

To all whom it may concern Be it known that I, LESTER P. THoMPsoN, ofPhelps, in the county of Ontario and State of New York, have inventedcertain new and useful Improvements in Combined Fallow and CropCultivators; and I do hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, making part of this specification, in whichFigure 1 is a side elevation of my improved cultivator. Fig. 2 is a planor top View of the right-hand portion of the same.

This invention relates to combined fallow and crop cultivators, in whicha primary and a secondary frame are employed and it consists, mainly, ina novel method of adjusting the relative position, vertically, of thetwo frames in this class of cultivators, and in making the secondaryframe invertible, whereby the vertical adjust-ability of the cultivatoris doubled.

The primary frame consists of the side bars A, to which are attached, atfront and rear, slotted cross-bars B and B, and to these are adjustablyattached the intermediate toothbars D. The pole B is also attachedrigidly to the bars B and B. The teeth It may be provided with anysuitable hanger-shanks, preferably braced hangers, as shown in Fig. 1. Iemploy a metallic jaw or saddle, s, bolted to the front bar B. The poleis secured at this point by passing through the jaw, and its rear end isbolted to the rear bar B. The ears 9 of the saddle or jaw are made toproject above the pole to receive the lower end of the seat-bar H, whichis hinged thereto by the pin d. Its upper end is coupled to the footbarF of the secondary frame by means of the jack-frame J and the ear-lugsa. The frame J is provided with several holes for the pin 6, whereby theupper end of the seat-bar H may be adjusted higher or lower withrelation to the cross-bar F. The lower end of the segment-standard N ishinged to the rear of the primary frame by a double ear-lug, k, fixed tothe upper side of the pole. Its upper end is provided with a series ofholes, and passes loosely through a slot in the seat-bar H, to which itmay be locked by inserting a key or pin, f, above the bar, and a key, 0,below it.

The primary frame may be thoroughly braced by the diagonal rods b.

There, is a journal-iron, E, bolted to the two front corners of thisframe, as shown in Fig.

2, and the outer end is inserted through one of the graduations in theL-shaped metallic stock G. The horizontal leg of this stock is alsoprovided with several holes, 0, into any one of which the axial armm ofthe carrierwheels W may be screwed or otherwise secured. The woodenextension G is bolted in a recess formed in the rear end of the stock G.The arms or bars G are firmly connected to the cross-bar F by means ofan angle-iron,

T. This is provided with two lips, 17, on the lower side, to clasp thesides of the bar F, and on the upper face are two transverse plates, 1',the inner one extending nearly to the upper side of .the bar G, and maybe braced or strengthened by a central web. The angle-iron is bolted tothe bar F, and the bar G is secured thereto and in its place in saidangle-iron by a bolt, 0.

The object of the slotted bars B and B is to permit the bars D to be setfarther apartfor wider teeth, or nearer together for narrow or chiselteeth, in which latter case the numher may be increased. By this meansthe implement may have its teeth so-set as to be capable of eithercultivating or billing corn or potatoes, two rows at a time. The kind ofteeth shown, and also the adjustment of the parts, represent theimplement as adapted to cultivating fallow ground.

If the driver is to walk, the pin f should be placed in such a hole inthe standard N as will permit the teeth to work to the desired depth,which is governed by the pin resting upon the seatbar. By omitting thepin 0, either or both wheels are allowed to drop into a furrow withoutforcing the teeth deeper into the ground, and also, ii the teeth shouldstrike any obstruction, the primary frame might rise without lifting thewheels or the outer frame; but if the driver rides the pin 0 also shouldbe inserted.

The teeth may be raised at any time while the implement is moving or atrest, when the driver rides, by stepping upon the bar B, withdrawing thepin e, and letting his weight back upon the seat-bar H. By placing thewheelarms at forward or back in the holes a, the implement may beadjusted or balanced to carry a light or a heavy driver. This might bedone by adjusting the seat upon the bar H 3 but that would be somewhatobjectionable by changing his relative position upon the machine.

To adapt the machine to the cultivation of crops of considerable growth,the secondary frame is detached by unhooking the standard J from thelugs 72 and withdrawing the pins 25 from the journals E. The latterallows the stocks G to be sprung off. This frame is then inverted andagain attached in any desired grade. It will be seen that the primaryframe will thereby be carried considerably higher than before, or asshown, and it will be necessary to apply teeth having longer shanks.

What I claim as my invention is i 1. In combination with the primary andsecondary frames hinged together in front,

the fixed pole, hinged seat-bar H, and pivoted standards J, andadjusting segment or bar N, constructed and arranged to operateconjointly, substantially as and for the purposes set forth.

2. In a combined fallow and crop cultivator,

, LESTER P. THOMPSON.

Witnesses: v

WM. S. LOUGHBOROUGH, N. A. PIERCE.

